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Intel D850MVSE Product Specification - Page 52

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Intel Desktop Board D850MD/D850MV Technical Product Specification The ICH2 has eight programmable interrupt request (PIRQ) input signals. All PCI interrupt sources either onboard or from a PCI add-in card connect to one of these PIRQ signals. Some PCI interrupt sources are electrically tied together on the D850MD and D850MV boards and therefore share the same interrupt. Table 18 shows an example of how the PIRQ signals are routed on the D850MD and D850MV boards. For example, using Table 18 as a reference, assume an add-in card using INTB is plugged into PCI bus connector 3. In PCI bus connector 3, INTB is connected to PIRQB, which is already connected to the SMBus controller, ICH2 audio/modem, and the AGP connector. The add-in card in PCI bus connector 3 now shares interrupts with these onboard interrupt sources. Table 18. PCI Interrupt Routing Map PCI Interrupt Source AGP connector ICH2 USB controller SMBus controller ICH2 USB controller ICH2 Audio / Modem ICH2 LAN OHCI controller 1 (Note 1) OHCI controller 2 (Note 1) EHCI controller (Note 1) PCI Bus Connector 1 PCI Bus Connector 2 PCI Bus Connector 3 PCI Bus Connector 4 (Note 2) PCI Bus Connector 5 (Note 2) Notes: 1. USB 2.0 option only 2. D850MV board only PIRQF INTA INTD INTC INTB INTA ICH2 PIRQ Signal Name PIRQG PIRQH PIRQB Other INTB INTA to PIRQA INTD to PIRQD INTB INTC to PIRQC INTB INTA to PIRQE INTD to PIRQA INTC to PIRQB INTH to PIRQC INTB INTC INTD INTA INTB INTC INTD INTA INTB INTC INTD INTA INTB INTC INTD NOTE The ICH2 can connect each PIRQ line internally to one of the IRQ signals (3, 4, 5, 6, 7, 9, 10, 11, 12, 14, and 15). Typically, a device that does not share a PIRQ line will have a unique interrupt. However, in certain interrupt-constrained situations, it is possible for two or more of the PIRQ lines to be connected to the same IRQ signal. 52

Section	Page
Intel® Desktop Board D850MD/D850MV Technical Product Specification	1
Revision History / Disclaimer	2
Preface	3
Intended Audience	3
What This Document Contains	3
Typographical Conventions	3
Notes, Cautions, and Warnings	3
Other Common Notation	4
Contents	5
1 Product Description	11
1.1 Board Differences	11
1.2 Overview	12
1.2.1 Feature Summary	12
1.2.2 Manufacturing Options	13
1.2.3 Board Layouts	14
1.2.4 Block Diagram	16
1.3 Online Support	18
1.4 Operating System Support	18
1.5 Design Specifications	19
1.6 Processor	22
1.7 System Memory	23
1.7.1 Memory Features	23
1.7.2 Continuity RIMM Modules	23
1.7.3 RDRAM Memory Configuration	24
1.8 Intel® 850 Chipset	25
1.8.1 AGP	26
1.8.2 USB	27
1.8.3 IDE Support	29
1.8.4 Real-Time Clock, CMOS SRAM, and Battery	30
1.8.5 Intel® 82802AB 4 Mbit FWH	30
1.9 I/O Controller	31
1.9.1 Serial Port	31
1.9.2 Parallel Port	32
1.9.3 Diskette Drive Controller	32
1.9.4 Keyboard and Mouse Interface	32
1.10 Audio Subsystem	33
1.10.1 Audio Connectors	34
1.10.2 Audio Subsystem Software	34
1.11 LAN Subsystem (Optional)	35
1.11.1 Intel® 82562ET PLC Device	35
1.11.2 RJ-45 LAN Connector with Integrated LEDs	35
1.11.3 LAN Subsystem Software	36
1.12 CNR (Optional)	36
1.13 Hardware Management Subsystem	37
1.13.1 Hardware Monitor Component	37
1.13.2 Fan Control and Monitoring	37
1.14 Power Management	38
1.14.1 Software Support	38
1.14.2 Hardware Support	42
2 Technical Reference	47
2.1 Introduction	47
2.2 Memory Map	47
2.3 I/O Map	48
2.4 DMA Channels	50
2.5 PCI Configuration Space Map	50
2.6 Interrupts	51
2.7 PCI Interrupt Routing Map	51
2.8 Connectors	53
2.8.1 Back Panel Connectors	54
2.8.2 Internal I/O Connectors	57
2.8.3 External I/O Connectors	70
2.9 Jumper Block	74
2.10 Mechanical Considerations	76
2.10.1 D850MD Form Factor	76
2.10.2 D850MV Form Factor	77
2.10.3 I/O Shield	78
2.11 Electrical Considerations	79
2.11.1 Power Consumption	79
2.11.2 Add-in Board Considerations	79
2.11.3 Standby Current Requirements	80
2.11.4 Fan Connector Current Capability	81
2.11.5 Power Supply Considerations	81
2.12 Thermal Considerations	82
2.13 Reliability	83
2.14 Environmental	84
2.15 Regulatory Compliance	85
2.15.1 Safety Regulations	85
2.15.2 EMC Regulations	85
2.15.3 Product Certification Markings (Board Level)	86
3 Overview of BIOS Features	87
3.1 Introduction	87
3.2 BIOS Flash Memory Organization	88
3.3 Resource Configuration	88
3.3.1 PCI Autoconfiguration	88
3.3.2 PCI IDE Support	88
3.4 SMBIOS	89
3.5 Legacy USB Support	89
3.6 BIOS Updates	90
3.6.1 Language Support	90
3.6.2 Custom Splash Screen	91
3.7 Recovering BIOS Data	91
3.8 Boot Options	92
3.8.1 CD-ROM and Network Boot	92
3.8.2 Booting Without Attached Devices	92
3.9 Fast Booting Systems with Intel® Rapid BIOS Boot	92
3.9.1 Peripheral Selection and Configuration	92
3.9.2 Intel Rapid BIOS Boot	93
3.9.3 Operating System	93
3.10 BIOS Security Features	94
4 BIOS Setup Program	95
4.1 Introduction	95
4.2 Maintenance Menu	96
4.2.1 Extended Configuration Submenu	97
4.3 Main Menu	98
4.4 Advanced Menu	99
4.4.1 PCI Configuration Submenu	100
4.4.2 Boot Configuration Submenu	101
4.4.3 Peripheral Configuration Submenu	102
4.4.4 IDE Configuration Submenu	104
4.4.5 Diskette Configuration Submenu	107
4.4.6 Event Log Configuration Submenu	108
4.4.7 Video Configuration Submenu	109
4.5 Security Menu	110
4.6 Power Menu	111
4.6.1 APM Submenu	112
4.6.2 ACPI Submenu	112
4.7 Boot Menu	113
4.7.1 Boot Device Priority Submenu	114
4.7.2 Hard Disk Drives Submenu	115
4.7.3 Removable Devices Submenu	115
4.7.4 ATAPI CD-ROM Drives Submenu	116
4.8 Exit Menu	116
5 Error Messages and Beep Codes	117
5.1 BIOS Error Messages	117
5.2 Port 80h POST Codes	119
5.3 Bus Initialization Checkpoints	123
5.4 Speaker	124